MICROWAVE DETECTOR

PROBLEM TO BE SOLVED: To provide a microwave detector with high sensitivity by adopting a structure to reduce a specific impedance to circuit components so as to reduce a frequency conversion loss of a mixer circuit. SOLUTION: A microwave circuit component 12 whose lower face is open is mounted to a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAJITA YUICHI, ONO HISAO, SUGIURA TAKEHIKO, HOSOI TETSUYA, SAWADA MOTOJI
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TRANSMISSION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a microwave detector with high sensitivity by adopting a structure to reduce a specific impedance to circuit components so as to reduce a frequency conversion loss of a mixer circuit. SOLUTION: A microwave circuit component 12 whose lower face is open is mounted to a detector to cover a metallic film 11 on a printed circuit board 10. Thus, a horn antenna and a cavity are configured. A flip chip mixer diode 31 is mounted on a throat of the horn antenna, that is, in the middle of a front side of a board 30 having projections 30a, 30b at both side ends. The anode and the cathode of the diode are conductive respectively to an anode electrode pattern 32a and a cathode pattern 32b which are formed separately on the front side of the board including the projections through surface mount. The projections are mounted between a boss 12c and a through hole 13 to connect the diode to each circuit.